Will Work For Free- Talented Burned Out Marketer Seeking product Manager Experience

Howdy folks
I code HTML,CSS, but looking for hands on experience as a product manger. I have read a stack of books and feel confident that i can add value. I know how to get the data form 5+ years of DM experience. I'm just... burned out from marketing. I want to try something completely new. I can also help with roll outs. Any suggestions? Referrals? Kind regards.